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Mathematical modeling of cement paste microstructure by mosaic pattern: Part I. Formulation

Published online by Cambridge University Press:  31 January 2011

Yunping Xi
Affiliation:
Department of Civil and Architectural Engineering, Drexel University, Philadelphia, Pennsylvania 19104
Paul D. Tennis
Affiliation:
Department of Civil Engineering Northwestern University, Evanston, Illinois 60208
Hamlin M. Jennings
Affiliation:
Department of Civil Engineering, and Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208
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Abstract

This paper develops a mathematical model using mosaic patterns to characterize structural features of complex, multiphase, and multidimensional microstructures, such as those for cement paste. A multiphase microstructure can be characterized by m independent parameters; the first m– 1 parameters are equivalent to the volume fractions of the phases, while the final parameter describes the grain size, and thus, the spatial arrangement of the microstructure. An evaluation procedure for the parameters is given; they can be evaluated based on a 2D image, and then the 3D microstructure can be simulated by the present model. The relationship among the model parameters and material parameters, such as water-to-cement ratio and particle size distribution, are also established.

Type
Articles
Copyright
Copyright © Materials Research Society 1996

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